Chapter 1

Summer was finally here! Ivy thought she was going to go crazy with boredom the last two weeks of school, but somehow she had survived. Even though it was just early June she already had a nice tan, thanks to the new pool her dad had had installed in the early spring. She and her brother, Steve, had been swimming in it for a month already, and both had plans for pool parties now that school was out. Ivy was going to be a senior at McMinn High and Steve a freshman. Over the last year Steve had really grown, going from a skinny kid shorter than Ivy's 5'2" to being a couple of inches taller and looking more like a young man. Ivy realized this as she lay out by the pool on the first full day of summer vacation. Steve was swimming laps while she was stretched out on a lounge chair in her favorite tanning bikini. It was one she had bought it at the beginning of summer last year, a little animal print string that her mom said she was forbidden to wear if any boys other than Steve were over swimming. Ivy grinned to herself. If their mom had seen the way Steve looked at Ivy in her little bikini she would not let them be at the pool alone at all!

In the last few months Ivy had caught her brother watching her many times. She realized that her little brother was at the age when boys became very curious about sex, and it gave her an illicit thrill knowing that Steve was trying to sneak a peek at her body. She had first noticed it during their family movie night. With her mom and dad on the love seat and she and her brother on the couch, they were watching the movie and eating popcorn. The room was dark except for the light from the big screen TV. Ivy was wearing her normal sleepwear, a big shirt and panties. The shirt she had on that night was a button up that she just pulled over her head, so the top three buttons were undone. As she lay back in the couch she kept noticing Steve shifting around, and out of the corner of her eye she saw the he was staring at her chest. She realized that the way her shirt was open he could probably see the whole side of her boob. Since then she had noticed that he couldn't seem to keep from staring at her. It didn't bother her, though. She was flattered and a little turned on knowing her brother thought she was sexy. As the weather got warmer and her outfits got skimpier she began teasing him by bending over in front of him in her short skirts or adjusting her cleavage in the hallway mirror while he stood in his doorway and pretended not to look. A couple of times she could hear him groan to himself, and she grinned knowing that she had such an effect on him.

She thought of how much she had teased her little brother as she watched him pull himself out of the water across the pool from her. His speedos clung to his ass as he levered himself up then turned to sit on the edge with his legs dangling in the water. When he leaned back on his hands she couldn't help but notice the nice sized package in the tight suit. She also felt a tingle in her crotch when she realized his eyes were locked on her tits. When she had bought her bikini last year she was a B cup, but in the last year her tits had grown into a solid C, which meant that the tiny triangles didn't cover much more than her nipples. She shifted in her chair, causing her tits to sway under her top, and watched Steve's face from behind her dark glasses. She felt herself getting unbearably horny as she laid in the sun with her brother's eyes on her.

She reached for the bottle of tanning oil and sat up to apply it to her legs. She could feel her tits pressing against her bikini top and knew they were close to falling out, but she didn't adjust them. As she rubbed the oil higher up her legs she straightened, and glanced across the pool at Steve. He was watching her intently now, his eyes darting from her tits to the crotch of her bikini. Ivy slid her oily hands up the inside of her thighs, opening her legs wider as she did. When her hands nudged against her pussy she moaned slightly, feeling her puffy lips through the thin material of her bikini. She snuck another look at Steve, and could see that her show was having an effect on him as well; the bulge of his cock was obvious in his tight speedos, and it looked like a nice sized bulge too. Ivy was no stranger to sex, but it had been a month since she had felt a cock in her pussy, and her fingers and hairbrush handle were poor substitutes. She realized she wanted to do more than tease her brother, but was afraid if she were too bold she would scare him off. She decided she would try to tease him into making a move on her.

"Hey, Steve, can you come over here for a minute?" she called across the pool to him, "I want to ask you something."

"Uh, sure," he replied, startled out of his trance.

He slipped into the pool and sank below the surface, swimming slowly underwater until he got to Ivy's side of the pool. He surfaced at the pool's edge and rested with his arms on the deck and his body in the pool. From here he was looking up between his sister's legs, her chair about three feet from him. He couldn't help but let his eyes wander over her tanned legs, up to her crotch, then up her belly to her tits, and finally to her face. She had a beautiful tan, not too dark and perfectly even. Her bikini bottom was barely three inches wide at the top, and just wide enough as it disappeared under her to cover her pussy lips. He knew she had to keep her pussy trimmed for it. Her belly was flat and tight, with a small waist that made her tits look even bigger. He could see the roundness of her tits bulging out of the sides and top of the tiny triangles. He was glad he was in the water because his cock was hard again from the sight. The last few months he had jerked off at least once a day thinking of his sexy sister.

Ivy knew she didn't have to worry about Steve being unwilling from the way his eyes were devouring her body. She had never seduced anyone before, though, and wasn't exactly sure how to go about it.

"What did you want to ask me, sis?" Steve interrupted her thoughts, startling her slightly.

"Well," she hesitated, thinking quickly, "I wanted to get an idea of what your plans are for the pool this summer. You know, during the day when mom and dad are at work. See, I told Jenny and Natalie they could come over some and tan with me, um, topless."

She saw his eyes light up when she mentioned her two best friends. She had not discussed tanning topless with them, but wanted to see his reaction to the idea.

"It's not that I want to run you off, Steve," she said quickly, "it wouldn't bother me if you were here, but they may be a little shy."

"It wouldn't bother you to be topless out here with me?" he asked incredulously, not believing his what his sister was suggesting.

"Want me to prove it?" she said teasingly. She sat up straight in the chair and placed her feet on the deck on either side, straddling it. She could feel the material of her bikini bottom pull tight against her pussy lips, but Steve's eyes were riveted to her chest. Instead of waiting for an answer she reached behind her back an untied the string, then pulled it free behind her neck and let the top fall to the chair, leaving herself topless in front of him. Her nipples immediately hardened in the air, crinkling up the dark areola.

"Shit, Ivy!" Steve couldn't help but exclaim.

Ivy giggled, loving the way it made her feel to be so nearly naked in front of her brother. "I bet a lot of those freshman cheerleaders don't have ugly tan lines like me, do they?"

Steve couldn't stop staring. Ivy's tits were beautiful, with no sag in them despite their fullness. The triangle shaped tan lines barely covered her dark brown nipples, but seeing that forbidden pale skin turned him on even more. He barely heard her comment about seeing other girls.

"What did you say about cheerleaders?" he asked.

"I said I bet those freshman cheerleaders who have the hots for you don't have these ugly tan lines." She repeated herself, this time raising her hands to her tits and tracing the lines marking where her bikini top had been.

"I wouldn't know," he replied a little shyly, "yours are the first I've ever seen live."

Ivy gulped as she realized what he was saying, "You mean, you've never... ?" she was not sure how to finish her question.

Steve was too turned on from the sight of his sister's tits to be shy now, so he told her the truth.

"I've felt a couple of girls up under their shirt while we necked, but that's as much as I've done." He admitted, "but none of them compare to you, sis. You are gorgeous!"

"Yeah, right. You are just saying that so I will let you see more!" she egged him on.

"No I'm not! I mean, I'd LOVE to see more, but I'm not lying when I say you are gorgeous. Jeff told me last week that he was going to offer to clean the pool for free just so he could see you in a bikini this summer!"

Ivy laughed out loud when she heard that. Jeff was Steve's best friend, and wasn't nearly as sneaky as Steve when it came to staring at her.

"You know, Steve, I don't have much more to show you," she said as she let her fingers play with the ties on the side of her bikini bottoms. "Would you like to see me naked?" she said quietly.

"God, yes, Ivy!" Steve was already so hard his cock hurt. He didn't know if he could control himself if he actually got to see her pussy.

"Well, little brother, I want to see you naked too. But before we do anything else I need some lotion or my nipples are going to get fried in this sun. Why don't you go grab the SPF 15 from the cabana? And leave your trunks in there."

Steve quickly swam over to the shallow end of the pool and climbed out. He went into the cabana that had been built next to the pool and found the suntan lotion. He looked over at Ivy and saw that she was lying back with her legs still straddling the chair. He gulped when he noticed that she had one hand inside her bikini as she looked toward the doorway waiting on him. He quickly stripped off his speedos, leaving them on the floor, and walked out into the sun, his hard cock leading the way to where his sister lie waiting. He stopped next to her chair, unsure of what to do next.

"Oh, my," Ivy said, looking at his hard 7" cock. "I guess I should stop calling you LITTLE brother, hmm?"

She still had one hand in her bikini, and with the other she reached up and gripped his cock. She slid her oil slick hand up and down the hard shaft, watching as a drop of precum oozed out the swollen tip.

"God, Ivy, that feels good," Steve groaned at the feel of his sister's hand on his shaft. "If you keep doing that I'm gonna cum!"

"Isn't that what you want?" she asked him, pulling her hand off of her pussy and cupping it over the head of his cock and squeezing gently, hearing him moan above her. "Or would you rather cum in me? I'm on the pill, you know, so you could squirt in my pussy. Or my mouth. Jason said I gave head better than anyone he's ever felt."

Hearing his sister talk so nasty was too much for Steve after the excitement of seeing her tits for the first time. He felt his balls contract and suddenly he was cumming. Ivy had felt his cock lurch also, and quickly sat up and aimed it at her tits. His first shot was so strong in looped up and landed on her cheek, leaving a trail down her neck to her left tit. The second stream painted her from her neck to her nipples. When he finally stopped spurting her entire chest was dripping with cum. She looked up at him with a wide smile, then leaned forward and caught his cockhead in her lips, gently tonguing the last drops from his cock before releasing it and lying back so he could see her covered in his cum.

"Wow! I've never seen a cock cum so much. When is the last time you jerked off?" She asked as she idly smeared his cum across her tits, coating her hard nipples with it.

"Last night. I was so horny from watching you wash the car I couldn't help it!"

She giggled again. She knew he would watch her wash her car, so she had worn just a white jog bra and a pair of workout shorts that were skin tight and left half of her ass exposed they were so short.

"Well, I guess since you are naked I should be too, huh?" she asked, looking up at him.

He just nodded. She untied the strings on each side of her suit and then lifted her hips in invitation. He reached down and pulled it off, baring her pussy to his hungry eyes. She loved the look on his face as he stared at her pussy. Her bush was trimmed on the sides for her bikini, but her lips and above her slit were covered with curls as dark as the hair on her head. She snapped him out of his trance by standing up and taking a step to the side of the pool, then diving in gracefully. She surfaced quickly and turned toward him, treading water as she watched Steve. He quickly dove in as well, swimming under her. She felt his hands graze her ass as he went by and dove after him, grabbing for his ass and being rewarded by him squirming away when she made contact. Both of them were good swimmers, and they spent the next few minutes playing underwater, tickling each other and 'accidentally' grabbing an ass or tit along the way. They finally ended up in the shallow end of the pool, Steve leaning against the side while Ivy sat on the steps. They were both out of breath from the strenuous activity and didn't speak for a moment.